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Windows 11 23H2 Windows 11 23H2 Security update
Patch Tuesday

KB5062552

KB5062552: Cumulative update for Windows 11, version 23H2, July 2025. Changjie typing problems reported; display-change black screens addressed

In short

Traditional Chinese typing may fail after installation, and display-change black screens are addressed for Windows 11 22H2 Enterprise and Education. The update also covers critical security flaws.

Does it affect you? Applies to: Devices running Windows 11, version 23H2, and Windows 11, version 22H2 Enterprise or Education editions.

Build
22631.5624
Security
79 fixed · 5 critical
Restart
Required

What changes

Improvements 2 changes

Windows 11, version 23H2

  • Version 23H2 includes all improvements from version 22H2.1

Servicing stack

  • The component that installs Windows updates gets quality improvements.2
    Includes servicing stack update KB5063707, build 22621.5619.

Fix 1 change

Graphics

For: Windows 11 22H2 Enterprise and Education devices

  • Black screens during display changes, such as connecting or disconnecting a monitor, are addressed.3
    For Windows 11 version 22H2 Enterprise and Education, this addresses a prior-release fix that could cause black screen issues during display changes.

Known issues

  1. Open Affects: Everyone

    Microsoft Changjie Input Method Editor

    After installation, the Changjie input method for Traditional Chinese might not form or select words correctly. The spacebar might not respond, words might appear distorted, or the candidate window might display incorrectly.4

    How to apply the workaround Workaround

    The page points to KB5062663 as addressing the issue.4

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2025-07-08
Classification
Security Updates
Type
Cumulative update
Restart
Required
Replaces
KB5060826, KB5060999, KB5062170, KB5058502
+33 earlier KB5058405, KB5055629, KB5058919, KB5055528, KB5053657, KB5053602, KB5052094, KB5051989, KB5050092, KB5050021, KB5048685, KB5046732, KB5046633, KB5044380, KB5044285, KB5043145, KB5043076, KB5041587, KB5041585, KB5040527, KB5040442, KB5039302, KB5039212, KB5037853, KB5037771, KB5036980, KB5036893, KB5035942, KB5035853, KB5034848, KB5034765, KB5034204, KB5034123
Replaced by
KB5063875
VersionBuildChannel
23H2 22631.5624 General availability

Security

79 vulnerabilities fixed
5 critical 72 important 1 moderate 1 low
VulnerabilitySeverityCVSS
CVE-2025-47981
SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability
 Critical 9.8
CVE-2025-48822
Windows Hyper-V Discrete Device Assignment (DDA) Remote Code Execution Vulnerability
 Critical 8.6
CVE-2025-47980
Windows Imaging Component Information Disclosure Vulnerability
 Critical 6.2
CVE-2024-36350
AMD: CVE-2024-36350 Transient Scheduler Attack in Store Queue
 Critical 5.6
CVE-2024-36357
AMD: CVE-2024-36357 Transient Scheduler Attack in L1 Data Queue
 Critical 5.6

The table lists the 5 exploited, publicly disclosed or critical vulnerabilities. See all 79 vulnerabilities →

Updated components

1,154 files changed since the previous update for the same versions.

Top changed componentsFiles
Windows Update28
Hyper-V and virtualization21
Graphics and display18
Secure Boot16
Networking13
Search12
Remote Desktop8
Security and sign-in8
Kernel7
Audio4
Printing4
Storage and file systems4

Sources

Updated
Cited passages from Microsoft's official notes (4)
  1. 1. This build includes all the improvements in Windows 11, version 22H2. support.microsoft.com
  2. 2. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. support.microsoft.com
  3. 3. Fixed: This update addresses a fix from a prior release that could cause black screen issues during display changes, like connecting or disconnecting a monitor. support.microsoft.com
  4. 4. Inability to form or select words after typing the full composition (associate phrase window). support.microsoft.com
Checked automatically: 8 of 8 checks passed, 4 quoted passages · compared with Microsoft's page on Oct 20, 2026
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 4/5, clarity 4/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake